Make it possible to disable/enable pseudo devices in UKC, config file and

at config -e. -moj  ok deraadt@

5 files changed, 44 insertions, 17 deletions

diff --git a/usr.sbin/config/gram.y b/usr.sbin/config/gram.y
index 265fd011b30..0cbd36abcf1 100644
--- a/usr.sbin/config/gram.y
+++ b/usr.sbin/config/gram.y
@@ -1,5 +1,5 @@
 %{
-/*	$OpenBSD: gram.y,v 1.21 2008/03/22 22:35:15 deraadt Exp $	*/
+/*	$OpenBSD: gram.y,v 1.22 2008/03/24 21:35:03 maja Exp $	*/
 /*	$NetBSD: gram.y,v 1.14 1997/02/02 21:12:32 thorpej Exp $	*/
 
 /*
@@ -346,7 +346,7 @@ config_spec:
 	MAKEOPTIONS mkopt_list |
 	MAXUSERS NUMBER			{ setmaxusers($2); } |
 	CONFIG conf sysparam_list	{ addconf(&conf); } |
-	PSEUDO_DEVICE WORD npseudo	{ addpseudo($2, $3); } |
+	PSEUDO_DEVICE WORD npseudo disable { addpseudo($2, $3, $4); } |
 	device_instance AT attachment ENABLE { enabledev($1, $3); } |
 	device_instance AT attachment disable locators flags_opt
 					{ adddev($1, $3, $5, $6, $4); };
diff --git a/usr.sbin/config/mkioconf.c b/usr.sbin/config/mkioconf.c
index 374a2115fbc..2534d0826ef 100644
--- a/usr.sbin/config/mkioconf.c
+++ b/usr.sbin/config/mkioconf.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mkioconf.c,v 1.27 2005/01/02 21:59:33 deraadt Exp $	*/
+/*	$OpenBSD: mkioconf.c,v 1.28 2008/03/24 21:35:03 maja Exp $	*/
 /*	$NetBSD: mkioconf.c,v 1.41 1996/11/11 14:18:49 mycroft Exp $	*/
 
 /*
@@ -449,7 +449,7 @@ emitpseudo(FILE *fp)
 {
 	struct devi *i;
 	struct devbase *d;
-	int cnt = 0;
+	int cnt = 0, umax;
 
 	if (fputs("\n/* pseudo-devices */\n", fp) < 0)
 		return (1);
@@ -473,8 +473,11 @@ emitpseudo(FILE *fp)
 		return (1);
 	for (i = allpseudo; i != NULL; i = i->i_next) {
 		d = i->i_base;
+		umax = d->d_umax;
+		if (i->i_disable)
+		    umax*=-1;
 		if (fprintf(fp, "\t{ %sattach, %d },\n",
-		    d->d_name, d->d_umax) < 0)
+		    d->d_name, umax) < 0)
 			return (1);
 	}
 	return (fputs("\t{ NULL, 0 }\n};\n", fp) < 0);
diff --git a/usr.sbin/config/sem.c b/usr.sbin/config/sem.c
index 3d5e60491c5..a3aff9f4f6a 100644
--- a/usr.sbin/config/sem.c
+++ b/usr.sbin/config/sem.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: sem.c,v 1.30 2004/01/04 18:30:05 deraadt Exp $	*/
+/*	$OpenBSD: sem.c,v 1.31 2008/03/24 21:35:03 maja Exp $	*/
 /*	$NetBSD: sem.c,v 1.10 1996/11/11 23:40:11 gwr Exp $	*/
 
 /*
@@ -888,7 +888,7 @@ bad:
 }
 
 void
-addpseudo(const char *name, int number)
+addpseudo(const char *name, int number, int disable)
 {
 	struct devbase *d;
 	struct devi *i;
@@ -910,6 +910,7 @@ addpseudo(const char *name, int number)
 	i = newdevi(name, number - 1, d);	/* foo 16 => "foo0..foo15" */
 	if (ht_insert(devitab, name, i))
 		panic("addpseudo(%s)", name);
+	i->i_disable = disable;
 	selectbase(d, NULL);
 	*nextpseudo = i;
 	nextpseudo = &i->i_next;
diff --git a/usr.sbin/config/sem.h b/usr.sbin/config/sem.h
index dbf27e91618..4fbfcd6793a 100644
--- a/usr.sbin/config/sem.h
+++ b/usr.sbin/config/sem.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: sem.h,v 1.12 2003/06/28 04:55:07 deraadt Exp $	*/
+/*	$OpenBSD: sem.h,v 1.13 2008/03/24 21:35:03 maja Exp $	*/
 /*	$NetBSD: sem.h,v 1.6 1996/11/11 23:40:10 gwr Exp $	*/
 
 /*
@@ -57,7 +57,7 @@ void		addconf(struct config *);
 void		setconf(struct nvlist **, const char *, struct nvlist *);
 void		adddev(const char *, const char *, struct nvlist *, int, int);
 void		enabledev(const char *, const char *);
-void		addpseudo(const char *name, int number);
+void		addpseudo(const char *name, int number, int disable);
 const char     *ref(const char *name);
 const char     *starref(const char *name);
 const char     *wildref(const char *name);
diff --git a/usr.sbin/config/ukcutil.c b/usr.sbin/config/ukcutil.c
index ce38166c26a..c800a7eeb09 100644
--- a/usr.sbin/config/ukcutil.c
+++ b/usr.sbin/config/ukcutil.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ukcutil.c,v 1.16 2008/03/23 15:00:29 maja Exp $ */
+/*	$OpenBSD: ukcutil.c,v 1.17 2008/03/24 21:35:03 maja Exp $ */
 
 /*
  * Copyright (c) 1999-2001 Mats O Jansson.  All rights reserved.
@@ -25,7 +25,7 @@
  */
 
 #ifndef LINT
-static	char rcsid[] = "$OpenBSD: ukcutil.c,v 1.16 2008/03/23 15:00:29 maja Exp $";
+static	char rcsid[] = "$OpenBSD: ukcutil.c,v 1.17 2008/03/24 21:35:03 maja Exp $";
 #endif
 
 #include <sys/types.h>
@@ -183,9 +183,12 @@ pdev(short devno)
 		}
 		if (devno > totdev && devno <= totdev + maxpseudo) {
 			pi = get_pdevinit(devno - totdev -1);
-			printf("%3d %s count %d (pseudo device)\n", devno,
+			printf("%3d %s count %d", devno,
 			    get_pdevnames(devno - totdev - 1),
-			    pi->pdev_count);
+			    abs(pi->pdev_count));
+			if (pi->pdev_count < 0)
+				printf(" disable");
+			printf(" (pseudo device)\n");
 			return;
 		}
 	}
@@ -602,6 +605,7 @@ void
 disable(int devno)
 {
 	struct cfdata *cd;
+	struct pdevinit *pi;
 	int done = 0;
 
 	if (devno <= maxdev) {
@@ -642,8 +646,17 @@ disable(int devno)
 			return;
 		}
 		if (devno > totdev && devno <= totdev + maxpseudo) {
-			printf("%3d %s can't disable pseudo device\n", devno,
-			    get_pdevnames(devno - totdev - 1));
+			pi = get_pdevinit(devno-totdev-1);
+
+			printf("%3d %s", devno,
+				get_pdevnames(devno - totdev - 1));
+			if (pi->pdev_count < 1) {
+				printf(" already");
+			} else {
+				ukc_mod_kernel = 1;
+				pi->pdev_count*=-1;
+			}
+			printf(" disabled\n");
 			return;
 		}
 	}
@@ -656,6 +669,7 @@ void
 enable(int devno)
 {
 	struct cfdata *cd;
+	struct pdevinit *pi;
 	int done = 0;
 
 	if (devno <= maxdev) {
@@ -695,8 +709,17 @@ enable(int devno)
 			return;
 		}
 		if (devno > totdev && devno <= totdev + maxpseudo) {
-			printf("%3d %s can't enable pseudo device\n", devno,
-			    get_pdevnames(devno - totdev - 1));
+			pi = get_pdevinit(devno-totdev-1);
+
+			printf("%3d %s", devno,
+				get_pdevnames(devno - totdev - 1));
+			if (pi->pdev_count > 0) {
+				printf(" already");
+			} else {
+				ukc_mod_kernel = 1;
+				pi->pdev_count*=-1;
+			}
+			printf(" enabled\n");
 			return;
 		}
 	}